February 17, 201313 yr Hi guys, I've updated my hardware on the server recently to the point of over kill for an unRAID server so I did some research and virtualised it to take full advantage of its resources. I'm currently running ESXi 5.1, I have an adaptec 1430SA and 8 onboard ports (ASUS P8Z77-Pro Motherboard) its a core i5-3550 processor with 16GB RAM. The adaptec is configured in a pass-through mode (Its not detected by ESXi but manages to pass-through nicely) and my onboard is configured as a Sata RAW Device mapping - LSI SAS. unRAID seems to work well, I can transfer files at 20-30mb which I am happy with - however since moving to ESXi the Parity runs extremely slow. on average 500kb-1mb which is not practical I have 11 Drives in total in this unraid 1430SA is running 4x 3TB Seagate Drives (one acting as the parity) Onboard running 5x 2TB Seagate Drives + 1x 1.5 Seagate drive + 1TB Seagate Cache drive ESXi is running on an onboard sata III port via SSD - unRAID is running as a VMDK with the usb key for the serial. What do you think my problem is here guys? Should I try move my parity to onboard? - Everything else seems to work nicely Anyone got any advice for me? I'm thinking of possibly getting a basic controller to run the SSD off and then passing though the onboard drives.
February 25, 201313 yr I have the same problem as you. But adding resources does not seem to be helping me. My parity checks are running at less than 1mb per second. What exactly did you add or change?
March 5, 201313 yr sure would like to see some more discussion on this. My monthly parity check takes about 3 days (at about 5.8mb/sec). Everything else is very slow during the checks but still on the right side of usability (but just barely).
March 26, 201313 yr I just started off my first in-esxi parity check. Starts off at 68.4 MB/Sec. My VM is build up as follows: Bare metal specs: See signature All disks on vt-d passthru thru 2 supermicro MV8 controllers VM specs: 4096 MB 2 CPU''s Network adaptor VMXNET 3 Thin provisioning Guest operating system setup as Ubuntu Linux 32bit (you do not get the vmxnet3 adaptor without that). The VM is started via the normal usb stick. I am running RC5 V12a. Within the VM I am running fully stock Unraid with only Airvideo and VMTools as plugin. Its rocksolid and low on resources.
March 26, 201313 yr At 22% still solid on 68 MB/Sec, seems really stable at these speeds. Total parity check should take 17 hours. This is with a 4TB parity drive against a total array of 23TB (largest drive 3TB).
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